Exhaust Manifold Replacement - Right Side 4.3L
Removal Procedure
- Raise the vehicle. Refer to
Lifting and Jacking the Vehicle
.
- Remove the right front tire.
- Remove the right fender wheelhouse extension (1).
- Disconnect the spark plug wires from the spark plugs.
- Remove the bolts and the spark plug wire support.
- Remove the starter. Refer to
Starter Motor Replacement
.
- Remove the catalytic converter assembly. Refer to
Catalytic Converter Replacement
.
- Remove the exhaust manifold bolts through the wheelhouse.
- Remove the exhaust manifold with the exhaust manifold gaskets and the spark plug wire shields from the engine.
- Clean all gasket surfaces.
Installation Procedure
Important: To assist in installing the exhaust manifold to the engine, the tabs on a NEW exhaust manifold gasket will hold the gasket and the bolts in place.
- Sub-assemble the NEW gaskets, the spark plug wire shields, and the bolts to the exhaust manifold.
- Ensure that the exhaust manifold bolts are held in place by the tabs on the exhaust manifold gaskets.
Notice: Refer to Fastener Notice in the Preface section.
- Install the exhaust manifold.
Tighten
- Tighten the exhaust manifold bolts - First Pass to 15 N·m (11 lb ft).
- Tighten the exhaust manifold bolts - Second Pass to 30 N·m (22 lb ft).
- Install the catalytic converter assembly. Refer to
Catalytic Converter Replacement
.
- Install the starter. Refer to
Starter Motor Replacement
.
- Install the spark plug wire support and bolts.
Tighten
Tighten the spark plug wire support bolts to 12 N·m (106 lb in).
- Install the spark plug wires. Refer to
Spark Plug Wire Replacement
.
- Install the fender wheelhouse extension (1).
- Install the front tire. Refer to
Tire and Wheel Removal and Installation
.
- Lower the vehicle.
Exhaust Manifold Replacement - Right Side 4.8L, 5.3L, 6.0L
Removal Procedure
- Remove the catalytic converter from
the exhaust manifold. Refer to
Catalytic Converter Replacement
.
- Remove the engine cover. Refer to
Engine Cover Replacement
.
- Remove the oil level indicator tube. Refer to
Oil Level Indicator and Tube Removal
.
- Remove the exhaust manifold, bolts and exhaust manifold.
- Clean all sealing surfaces.
Installation Procedure
Notice: Refer to Fastener Notice in the Preface section.
- Install the exhaust manifold and bolts.
Tighten
- Tighten the exhaust manifold bolts - First Pass to 15 N·m (11 lb ft).
- Tighten the exhaust manifold bolts - Second Pass to 25 N·m (18 lb ft).
- Install the oil level indicator tube. Refer to
Oil Level Indicator and Tube Removal
.
- Install the catalytic converter to the exhaust manifold.
- Install the engine cover. Refer to
Engine Cover Replacement
.
Exhaust Manifold Replacement - Right Side 6.6L
Callout
| Component Name
|
Preliminary Procedures
- Remove the right side exhaust pipe. Refer to Exhaust Pipe Replacement - Right Side .
- Remove the right front tire and wheel. Refer to Tire and Wheel Removal and Installation .
- Remove the right side wheelhouse splash shield. Refer to .
|
1
| Exhaust Manifold Nut (Qty: 2)
Tip Torque the exhaust manifold nuts in the sequence shown in the graphic.
Tighten 38 N·m (28 lb ft) |
2
| Exhaust Manifold Bolt (Qty: 6)
Tip Torque the bolts in the sequence shown in the graphic.
Tighten 38 N·m (28 lb ft) |
3
| Right Side Exhaust Manifold
Procedure
- Transfer the exhaust manifold gasket.
- Replace or transfer the exhaust manifold gasket as needed.
|